S9i Not producing as expected

New to mining. Started a few months ago. Got a couple S9i’s. They run better than expected, hash rate is where it should be, no chips errors. Using Nice hash. Not getting the return that Nice hash says I should be. Are there any tweaks I am not aware of?

See if Nicehash had custom firmware for your miner i.e, NHOS

Thanks for responding. I am running nicehash’s custom firmware. The S9I’s are still not getting the return nicehash says they should. NHOS is for GPU mining not ASICS.

I was going to buy an S9 because that had the best ROI compared to other S9 models. Checked ROI again today and called it quits on that idea.

Think I’ll try get a decent card instead